Paleolithic times were undoubtedly great times. Food was abundant. Abundant animals, abundant fruits. Call it the garden of eden. All of a sudden there was a worldwide shift to agriculture and this scientists call Neolithic times. Why? There was a worldwide catastrophe. The heavens changed, the weather changed, the sky configuration are a testimony to that.
View the 10 minute video: Symbols of an ancient sky and listen to the announcer as he starts off his discussion
I believe we are still in the bad times and getting worse times of good food availability. True human food was optimal during several times in human pre-history. But the world is not static. Drastic changes come and go. Some for the better, some for the worse.
It is true the documentary above wants us to understand our history. We understand our history, we self experiment, then we achieve better health. Paleolithic dieting is real. It is beneficial, it is true human food. Grains and vegetables are neolithic foods, survival foods, they are not optimal foods. Fruits and animals with the fats are our optimal human foods.
Now that we know our history, those of us in the know can trace, or mimic or get as close as possible to eating true human foods. I believe we humans are optimized for a balance of fruits and animal foods. What is available in your environment determines that balance.